<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title>铅笔类型图案</title>
		<style type="text/css">
			#box1{
				width: 100px;
				height: 200px;
				background: green;
			}
			#box2{
				width: 0px;
				height: 0px;
				border-bottom: solid 50px transparent;
				border-left:   solid 50px transparent;
				border-right:  solid 50px transparent;
				border-top:    solid 80px black;
			}
		</style>
	</head>
	<body>
		<div id="box1">
		
		</div>
		<div id="box2">
			
		</div>
	</body>
</html>
